ABSTRACT
A further problem with pan-European standardisation is the differences in the manner in which materials have been used. In the UK, typical practice is to blend at the mixer, usually at a ready mixed concrete plant, using a selected ratio of portland cement and addition. In continental Europe, additions are more commonly used pre-blended with portland cement at a fixed ratio. However, ENV197 must be seen in the light that it is only one of a whole range of European standards which will cover both cement and additions in their own right as well as for concrete. However, there is the potential for some conflict either with national standards or typical practice until all these standards finally emerge.
